Long-term effects of ambient PM2.5 on hypertension in multi-ethnic population from Sichuan province, China: a study based on 2013 and 2018 health service surveys

• Published in: Environmental science and pollution research international Vol. 28; no. 5; pp. 5991 - 6004
• Main Authors: Xu, Jiayue, Zhang, Yuqin, Yao, Minghong, Wu, Gonghua, Duan, Zhanqi, Zhao, Xing, Zhang, Juying
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2021; Springer Nature B.V
• Subjects: Adult; Adults; Air Pollutants - analysis; Air Pollution - analysis; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; China - epidemiology; Chronic illnesses; Cross-Sectional Studies; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Exposure - analysis; Environmental Health; Environmental science; Ethnic factors; Exposure; Health Services; Humans; Hypertension; Hypertension - chemically induced; Hypertension - epidemiology; Long-term effects; Minority & ethnic groups; Particulate Matter - analysis; Polls & surveys; Pollution levels; Public health; Research Article; Risk analysis; Risk factors; Waste Water Technology; Water Management; Water Pollution Control; China; Hypertension; Long-term exposure; Ethnicity; Fine particulate matter; Comorbidity
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-020-10893-y

Hypertension, a major risk factor of many severe chronic diseases and leading cause of global disease burden, is reported to be associated with long-term exposure to PM 2.5 . China’s high PM 2.5 pollution level has become a major public health issue. However, existing studies from China have got inconsistent results with very limited investigation into the multi-ethnic peoples. This study adds multi-ethnic evidence from Sichuan Province, southwestern China, and assesses ethnic differences of PM 2.5 exposure effect on hypertension. We pooled large cross-sectional data from two surveys conducted in 2013 and 2018 to examine the association of long-term exposure to PM 2.5 on prevalence of hypertension in adults aged 30 years old and above. Community-specified annual PM 2.5 concentration was estimated using satellite data. Thirty-one thousand four hundred sixty-two participants with average exposure concentration of 32.8 μg/m 3 were included. The proportions of the Han, the Tibetan, the Yi, and other ethnic people were 89.2%, 7.3%, 3.2%, and 0.3%, respectively. The adjusted odds ratio (OR) was 1.08 (95% CI, 1.04–1.12) for a 10 μg/m 3 PM 2.5 concentration increment. The adjusted ORs for the Han, the Tibetan, and the Yi were 1.08 (95% CI, 1.04–1.12), 0.03 (95% CI, 0.00–0.27), and 1.75 (95% CI, 1.28–2.38) for a 10 μg/m 3 PM 2.5 concentration increment, respectively. Stratification analysis found stronger associations in participants with chronic diseases and Yi minority population. The results showed that long-term exposure to PM 2.5 may increase the risk of hypertension prevalence in Chinese multi-ethnic adults. The associations were different among ethnicities.